MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Numerous embedded URLs, many on disposable hosting and using UTM parameters, suggest a phishing or malware distribution campaign. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically points to a link farm strategy, reinforcing the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://allytemp.ru/uplcv?utm_term=present+perfect+and+past+simple+worksheet PDF link annotation
- https://davnosti.ru/upload/kukozibabawowadobe.pdfIn PDF document text
- http://pengyou-english.com/FileData/ckfinder/files/20210913_799E9981500F6012.pdfIn PDF document text
- http://bscsaoner.in/ckfinder/userfiles/files/67944667281.pdfIn PDF document text
- http://alemotta.com/resources/original/file/ludajuwomi.pdfIn PDF document text
- https://am-system.eu/ckfinder/userfiles/files/36292785276.pdfIn PDF document text
- https://pointswestliving.com/ckfinder/userfiles/files/motunufoxumoredufe.pdfIn PDF document text
- http://twfbs.com/ckfinder/userfiles/files/puginulodegosaxukarota.pdfIn PDF document text
- http://chickenwild.com/upload/contents/images/images/20890443954.pdfIn PDF document text
- http://talk200.com/admin/admin/uploadfiles/file/muzegolonefameluzirijovix.pdfIn PDF document text
- http://agisma.ru/files/pages/files/subavumuzanimiw.pdfIn PDF document text
- https://eletvital.hu/uploads/files/tupanopabujajazewigabe.pdfIn PDF document text
- http://elcwma.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bagozozobafaxobilik.pdfIn PDF document text
- http://library.nesdb.go.th/ic/admin/ckfinder/userfiles/files/varuwazof.pdfIn PDF document text
- https://odontologosmalca.com/images/userfiles/file/15379008085.pdfIn PDF document text
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/18q4vpn8vt7bq6nen6f7hja1qe/26200666314.pdfIn PDF document text
- http://logtech.cz/foto/Image/file/xoritunadot.pdfIn PDF document text
- http://vpsystem.com/files/fck/20312077141.pdfIn PDF document text
- https://seerupit.dk/assens/file/labulepiw.pdfIn PDF document text
- https://lrdreamteam.com/files/files/file/InfoProduct/file/58193185157.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/saxunefadove.pdfIn PDF document text
- https://hunde-katzen.at/soubory/vawofisusijinamirefafinow.pdfIn PDF document text
- https://avukat.dnsaktif.net/upload/files/60364392903.pdfIn PDF document text
- http://winteringlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rufatewuvokapitiniz.pdfIn PDF document text
- https://desmar.cl/gestion/admin/images/upload/file/10685530931.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b695.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB695 | 17504 bytes |
SHA-256: a05c956a035aaea9c32f4d845ea3abadb9ea2ae57c8acb55c289aab3b81a85c5 |
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font_01_sfnt_off0000e38a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38A | 11064 bytes |
SHA-256: b17938a64a54defe2951fec06be43d4dd5a21761fa55924b7804cdf2886e6e64 |
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font_02_sfnt_off0000fd30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD30 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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